<?php
namespace app\admin\validate;

/**
* 验证器
*/
use think\Validate;
class Article extends Validate
{
	protected $rule =   [
        'title'         =>  'require|max:25|unique:arctype',
        'pid'           =>  'number',
    ];
    
    protected $message  =   [
        'title.require' => '名称必须',
        'title.max'     => '名称最多不能超过25个字符',

        'pid.number'    => '上级栏目参数错误',
        'pid.checkpid'    => '上级栏目不能为自身',

    ];

    // edit 验证场景定义
    public function sceneEdit()
    {
        return $this->only(['title','pid'])
            //->append('title', 'unique:arctype')
            ->append('pid', 'checkpid:pid');

    }  

    // 自定义验证规则
    protected function checkpid($value,$rule,$data=[])
    {
        if($data['id'] === $data['pid'] ){
            return '栏目父级，同本级不能相同';
        }else{
            return true;
        }

    }
	
}